# dunamai > Dynamic version generation - **URL**: https://www.freshcrate.ai/projects/dunamai - **Author**: Matthew T. Kennerly - **Category**: Developer Tools - **Latest version**: `1.26.1` (2026-04-21) - **License**: MIT - **Source**: https://github.com/mtkennerly/dunamai - **Language**: Python - **GitHub**: 382 stars, 26 forks - **Registry**: pypi (`dunamai`) - **Tags**: `dynamic`, `pypi`, `version`, `versioning` ## Description # Dunamai Dunamai is a Python 3.5+ library and command line tool for producing dynamic, standards-compliant version strings, derived from tags in your version control system. This facilitates uniquely identifying nightly or per-commit builds in continuous integration and releasing new versions of your software simply by creating a tag. Dunamai is also available as a [GitHub Action](https://github.com/marketplace/actions/run-dunamai). ## Features * Version control system support: * [Git](https://git-scm.com) (2.7.0+ is recommended, but versions as old as 1.8.2.3 will work with some reduced functionality) * [Mercurial](https://www.mercurial-scm.org) * [Darcs](http://darcs.net) * [Subversion](https://subversion.apache.org) * [Bazaar](https://bazaar.canonical.com/en) * [Fossil](https://www.fossil-scm.org/home/doc/trunk/www/index.wiki) * [Pijul](https://pijul.org) * Version styles: * [PEP 440](https://www.python.org/dev/peps/pep-0440) * [Semantic Versioning](https://semver.org) * [Haskell Package Versioning Policy](https://pvp.haskell.org) * Custom output formats * Can be used for projects written in any programming language. For Python, this means you do not need a setup.py. ## Usage ### Installation ``` pip install dunamai ``` ### CLI ```console # Suppose you are on commit g29045e8, 7 commits after the v0.2.0 tag. # Auto-detect the version control system and generate a version: $ dunamai from any 0.2.0.post7.dev0+g29045e8 # Or use an explicit VCS and style: $ dunamai from git --no-metadata --style semver 0.2.0-post.7 # Custom formats: $ dunamai from any --format "v{base}+{distance}.{commit}" v0.2.0+7.g29045e8 # If you'd prefer to frame the version in terms of progress toward the next # release rather than distance from the latest one, you can bump it: $ dunamai from any --bump 0.2.1.dev7+g29045e8 # Validation of custom formats: $ dunamai from any --format "v{base}" --style pep440 Version 'v0.2.0' does not conform to the PEP 440 style # Validate your own freeform versions: $ dunamai check 0.01.0 --style semver Version '0.01.0' does not conform to the Semantic Versioning style # More info: $ dunamai --help $ dunamai from --help $ dunamai from git --help ``` ### Library ```python from dunamai import Version, Style # Let's say you're on commit g644252b, which is tagged as v0.1.0. version = Version.from_git() assert version.serialize() == "0.1.0" # Let's say there was a v0.1.0rc5 tag 44 commits ago # and you have some uncommitted changes. version = Version.from_any_vcs() assert version.serialize() == "0.1.0rc5.post44.dev0+g644252b" assert version.serialize(metadata=False) == "0.1.0rc5.post44.dev0" assert version.serialize(dirty=True) == "0.1.0rc5.post44.dev0+g644252b.dirty" assert version.serialize(style=Style.SemVer) == "0.1.0-rc.5.post.44+g644252b" ``` The `serialize()` method gives you an opinionated, PEP 440-compliant default that ensures that versions for untagged commits are compatible with Pip's `--pre` flag. The individual parts of the version are also available for you to use and inspect as you please: ```python assert version.base == "0.1.0" assert version.stage == "rc" assert version.revision == 5 assert version.distance == 44 assert version.commit == "g644252b" assert version.dirty is True # Available if the latest tag includes metadata, like v0.1.0+linux: assert version.tagged_metadata == "linux" ``` ### Tips By default, the "v" prefix on the tag is required, unless you specify a custom tag pattern. You can either write a regular expression: * Console: ```console $ dunamai from any --pattern "(?P\d+\.\d+\.\d+)" ``` * Python: ```python from dunamai import Version version = Version.from_any_vcs(pattern=r"(?P\d+\.\d+\.\d+)") ``` ...or use a named preset: * Console: ```console $ dunamai from any --pattern default-unprefixed ``` * Python: ```python from dunamai import Version, Pattern version = Version.from_any_vcs(pattern=Pattern.DefaultUnprefixed) ``` You can also keep the default pattern and just specify a prefix. For example, this would match tags like `some-package-v1.2.3`: * Console: ```console $ dunamai from any --pattern-prefix some-package- ``` * Python: ```python from dunamai import Version version = Version.from_any_vcs(pattern_prefix="some-package-") ``` ### VCS archives Sometimes, you may only have access to an archive of a repository (e.g., a zip file) without the full history. Dunamai can still detect a version in some of these cases: * For Git, you can configure `git archive` to produce a file with some metadata for Dunamai. Add a `.git_archival.json` file to the root of your repository with this content: ``` { "hash-full": "$Format:%H$", "hash-short": "$Format:%h$", "timestamp": "$Format:%cI$", "refs": "$Format:%D$", "describe": "$Format:%(describe:tags=true,match=v[0-9]*)$" } ``` Add this line to your `.gitattributes` file. If you don't already have t ## Recent releases | Version | Date | Urgency | Changes | | --- | --- | --- | --- | | `1.26.1` | 2026-04-21 | Low | Imported from PyPI (1.26.1) | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | | `v1.26.1` | 2026-04-04 | Medium | * Fixed: The `highest_tag` argument was ignored in `Version.from_any_vcs()`. ([Contributed by ninoseki](https://github.com/mtkennerly/dunamai/pull/110)) * Fixed: Compatibility with Pijul `1.0.0-beta.11`. | ## Citation - HTML: https://www.freshcrate.ai/projects/dunamai - Markdown: https://www.freshcrate.ai/projects/dunamai.md - Dependencies JSON: https://www.freshcrate.ai/api/projects/dunamai/deps _Generated by freshcrate.ai. Indexes pypi releases for AI-agent ecosystem packages._